Mass anomalous dimension in SU(2) with six fundamental fermions

被引：44

作者：

Bursa, Francis ^{[1
]}

Del Debbio, Luigi ^{[2
]}

Keegan, Liam ^{[2
]}

Pica, Claudio ^{[3
]}

Pickup, Thomas ^{[4
]}

机构：

[1] Univ Cambridge Jesus College, Cambridge CB5 8BL, England

[2] Univ Edinburgh, SUPA, Sch Astrophys & Astron, Edinburgh EH9 3JZ, Midlothian, Scotland

[3] Univ So Denmark Odense, Origins CP3, DK-5230 Odense M, Denmark

[4] Univ Oxford, Rudolf Peierls Ctr Theoret Phys, Oxford OX1 3NP, England

来源：

PHYSICS LETTERS B | 2011年 / 696卷 / 04期

基金：

英国工程与自然科学研究理事会;

关键词：

Technicolour; Lattice field theory; GAUGE-THEORIES;

D O I：

10.1016/j.physletb.2010.12.050

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We simulate SU(2) gauge theory with six massless fundamental Dirac fermions. We measure the running of the coupling and the mass in the Schrodinger Functional scheme. We observe very slow running of the coupling constant. We measure the mass anomalous dimension gamma, and find it is between 0.135 and 1.03 in the range of couplings consistent with the existence of an IR fixed point. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：374 / 379

页数：6

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